Data transmission method in radio link control layer acknowledged mode

A technology of wireless link control and data transmission method, which is applied in the field of data transmission in the confirmation mode of the wireless link control layer, can solve the problems of the realization method of data transmission in the confirmation mode without public announcement, and achieves the effect of high efficiency

Active Publication Date: 2010-11-24
北京中科晶上科技股份有限公司
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Problems solved by technology

[0003] In the existing broadband mobile communication protocols, although the overall framework of data transmission in confirmation mode is roughly given, the specific implementation method of data transmission in confirmation mode has not been published in the published literature

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  • Data transmission method in radio link control layer acknowledged mode
  • Data transmission method in radio link control layer acknowledged mode
  • Data transmission method in radio link control layer acknowledged mode

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Embodiment Construction

[0048] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0049] Before describing the method of the present invention in detail, firstly, a unified description is given to the concepts and data structures involved in the present invention.

[0050] Sending side and receiving side: According to hardware division, the wireless communication system includes base station and mobile terminal. Two-way data communication is performed between the base station and the mobile terminal, the base station can send data to the mobile terminal, and can also receive data from the mobile terminal, and the same is true for the mobile terminal. In order to distinguish different roles in the communication process and make it easier for others to understand, the present invention divides the wireless communication system into a sending side and a receiving side. The sending side represents the part that sends data in a...

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Abstract

The invention provides a data transmission method in a radio link control layer acknowledged mode, which comprises the following steps: establishing a logical channel message queue for a logical channel between a transmitting side and a receiving side; when the transmitting side transmits data through a first logical channel, transmitting the data after packeting and segmenting the data; after the receiving side receives the data packets, analyzing the data packets which pass through the valid detection, storing the data packets in the receiving cache queue or resegmenting queue of a second logical channel according to the analysis result, updating the parameters of a receive window, and submitting the data packets after the data packets satisfy the requirements; desegmenting and depacketing the data packets submitted by a submission queue, submitting the recombined integrated service data unit to an upper layer, constructing a status report, and transmitting the status report to the transmitting side; and after the transmitting side receives and analyzes the status report, processing the status report, and retransmitting the data when detecting loss or transmitting errors in the previously transmitted data packets according to the status report.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a data transmission method in a confirmation mode of a radio link control layer. Background technique [0002] In TD-SCDMA, WCDMA, LTE and other broadband mobile communication systems, according to different types of transmission services, the radio link control layer (Radio Link Control, RLC for short) provides three transmission modes: acknowledged mode (Acknowledged Mode), non- Acknowledgment mode, transparent mode. The transparent mode is mainly used to transmit services that require high real-time performance but relatively low requirements on transmission accuracy, such as video services. Acknowledgment mode is mainly used to transmit services that require high data security and reliability but low real-time requirements. The non-acknowledged mode is between the aforementioned transparent mode and confirmed mode. This mode is used for services that require a balance ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L1/18H04W28/04H04W80/02
Inventor 刘强施渊籍钱蔓藜石晶林
Owner 北京中科晶上科技股份有限公司
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